CN101936589B - Method for treating harmful aerosol in relatively sealed space - Google Patents
Method for treating harmful aerosol in relatively sealed space Download PDFInfo
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- CN101936589B CN101936589B CN201010267297XA CN201010267297A CN101936589B CN 101936589 B CN101936589 B CN 101936589B CN 201010267297X A CN201010267297X A CN 201010267297XA CN 201010267297 A CN201010267297 A CN 201010267297A CN 101936589 B CN101936589 B CN 101936589B
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- air
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- pressure
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- 239000000443 aerosol Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title abstract description 5
- 238000005111 flow chemistry technique Methods 0.000 claims abstract description 26
- 230000001954 sterilising effect Effects 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000003672 processing method Methods 0.000 claims description 19
- 230000009467 reduction Effects 0.000 claims description 19
- 238000011045 prefiltration Methods 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 244000005700 microbiome Species 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000030303 breathing problems Diseases 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 241000712461 unidentified influenza virus Species 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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Abstract
The invention relates to a method for treating harmful aerosol in a relatively sealed space, which comprises: (a) forming a fresh air supply opening in a side wall which forms the relatively sealed space, and charging fresh air into the relatively sealed space from the fresh air supply opening; (b), arranging an air flow processing unit on the side, opposite to the fresh air supply opening, of the relatively sealed space, wherein the air flow processing unit comprises a sealed tank box arranged on the side wall of the relatively sealed space and a filtering and sterilizing device and a fan which are arranged in the seal tank body in turn along the flowing direction of the air flow, and the sealed box body is provided with an air outlet channel; and (c) controlling the ratio of the inlet air volume at the fresh air supply opening to the air outlet volume discharged from the air outlet channel to generate an oriented air flow flowing from the fresh air supply opening side to the air flow processing unit in the relatively sealed space, wherein the oriented air flow is discharged into the atmosphere from the air outlet channel after passing through the air flow processing unit. The method of the invention can effectively avoid the diffusion of the aerosol and has better treatment effect and low cost.
Description
Technical field
The invention belongs to depollution of environment technical field, particularly a kind of processing method that harmful aerosol in the small space is handled.
Background technology
In the prior art, be to extract, directly be disposed to outside the space that the dilution through atmosphere reduces concentration with blower fan for the high concentration aerosol conventional treatment in the particular space.The air discharged quality is not done any processing, and when extracting the space air, the air that replenishes equal flow gets into the space.The space inside and outside differential pressure is 0, is isobaric zone.This is fully feasible for harmless aerosol or such processing of beneficial bacterium; If pass through air and can infect but aerosol is certain; As contain patient's saliva aerosol of first influenza virus, adopt aforesaid way to handle, then harmful aerosol can through blower fan to around diffusion.Owing to be isobaric, it also might directly disseminate around the space, causes the consequence of diffusion.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes prior art, and harmful aerocolloidal processing method in a kind of relative closure space is provided, and effectively avoids aerocolloidal diffusion.
For solving above technical problem, the present invention takes following technical scheme:
Harmful aerocolloidal processing method in a kind of relative closure space, it comprises that (a) offers new wind and replenish mouth on a sidewall that constitutes the relative closure space, and in the relative closure space, feeds new wind for additional mouthful by this new wind; (b) side with respect to additional mouthful of new wind in the relative closure space is provided with the air-flow processing unit; This air-flow processing unit comprises the seal case on the sidewall that is arranged on the relative closure space and is successively set on filtering and sterilizing device and blower fan in the seal case by the flow direction of air-flow, on the sealing casing, is provided with the air-out passage; And (c) the new wind of control replenishes the ratio of mouthful air intake flow at place and the air-out flow of discharging from the air-out passage; Make that in the relative closure space, producing the wind of making a fresh start replenishes the windstream of mouthful place effluent to the air-flow processing unit; This windstream is discharged in the atmosphere through the air-out passage after the air-flow processing unit processes.
According to a preferred version of the present invention: said filtering and sterilizing device comprises the prefilter that is used for stopping bulky grain dust, the uviol lamp that sets gradually by the air current flow direction and can kill the air cleaner of holding back down the germ microorganism that dust has.Filtration system by prefilter and air cleaner are formed can be kept out tiny aerosol and bulky grain dust, and atmosphere to external world plays specific protective effect.
Preferably; The upper reaches that this processing method also is included in prefilter are provided with the aerosol checkout gear; A detected aerosol concentration and a preset value are compared, when being higher than preset value, sending instruction by central processing unit and give the control system; Start uviol lamp and assist sterilization, send the too high prompting of aerosol concentration through sound and light alarm simultaneously.Further, also the pressure reduction of filtering and sterilizing device is detected in real time and when the value that detects surpasses preset value, sends prompting.
In the step (c), in order to reach the negative pressure of enough formation windstreams, the ratio of generally controlling the additional mouth of new wind air intake flow of locating and the air-out flow of discharging from said air-out passage gets final product smaller or equal to 0.9.
Because the space is a relative closure; When in case other position leakage (for example opening door) appears in the space; Pressure in the space can change, and therefore, the present invention also preferably monitors the pressure in the relative closure space in real time; Be higher than setting value if detect pressure, then strengthen air-out flow to guarantee to form the required enough negative pressure of windstream.According to a concrete aspect, utilize differential pressure pickup to gather the pressure in the enclosure space, calculate the pressure reduction inside and outside the enclosure space by central processing unit then; If pressure reduction is lower than the setting value lower limit, then central processing unit sends instruction and gives the control system, and rotation speed of fan is improved; Increase air-out flow with this, pressure to the enclosure space inside and outside differential pressure in the reduction enclosure space is higher than under the setting value prescribes a time limit, and central processing unit provides instruction again and keeps rotation speed of fan constant; Otherwise if pressure reduction is higher than the setting value upper limit, then central processing unit sends instruction and gives the control system; Rotation speed of fan is reduced; Reduce air-out flow with this, pressure to the enclosure space inside and outside differential pressure in the reduction enclosure space is lower than on the setting value prescribes a time limit, and central processing unit provides instruction again and keeps rotation speed of fan constant.
Because the employing of technique scheme, the present invention compared with prior art has the following advantages:
Adopt the present invention, can in the relative closure space, form the dynamically and directionally air-flow of another opposite side directed flow from a side direction, the aerosol in the enclosure space is along with windstream gets into the air-flow processing unit; Discharge through pressurization after filtration, the sterilization successively, on the one hand, the directed air-flow processing unit that flows into of aerosol; Can not spread; The adjacent position of particularly new wind inlet, aerocolloidal concentration is very little, has guaranteed the environment in the enclosure space; On the other hand, after the filtration and sterilization processing of aerosol through the air-flow processing unit, just be discharged in the atmosphere, can not pollute to external environment.The inventive method is particularly suitable for that harmful aerocolloidal small sized applications be prone to take place and handles handover through airborne breathing problem patient, treatment, monitoring occasion etc.; Can equip rescue equipment (like negative pressure ambulance) when sudden epidemic situation is broken out at short notice and form specific treatment environment (negative pressure ward), protect treatment personnel and entourage to greatest extent.In addition, processing cost of the present invention is lower.
Description of drawings
Below in conjunction with concrete embodiment the present invention is done further detailed explanation:
Fig. 1 is the floor map that has shown air flow direction when adopting processing method of the present invention;
Fig. 2 is the another floor map that has shown air flow direction when adopting processing method of the present invention;
Fig. 3 is the schematic perspective view of Fig. 2;
Fig. 4 looks sketch map for the master according to air-flow processing unit of the present invention;
Fig. 5 is according to looking sketch map in the left side of air-flow processing unit of the present invention;
Fig. 6 is the schematic top plan view according to air-flow processing unit of the present invention;
Fig. 7 is the work sketch map according to electric control unit of the present invention;
Wherein: 1, relative closure space; 10, new wind replenishes mouth; 2, air-flow processing unit; 20, seal case; 200, air-out passage; 21, filtering and sterilizing device; 210, prefilter; 211, air cleaner; 212, uviol lamp; 22, blower fan; 3, windstream.
The specific embodiment
The invention thought of processing method of the present invention is: the side in the relative closure space feeds new wind; And utilize blower fan to extract air-flow out at another opposite side; And the ratio of controlling new wind flow and air-out flow makes in the relative closure space, to form from a side direction the windstream that the blower fan orientation for place flows; Enclosure space is in negative pressure state all the time; Thereby the aerosol in the space can be along with air-flow oriented flow to air-flow processing unit, and filters, drains in the ambient atmosphere after the sterilization processing through this processing unit.The running of each parts of air-flow processing unit of the present invention is implemented through electric control unit control of the present invention.Below in conjunction with concrete embodiment the present invention is done further detailed explanation.
Referring to Fig. 1 to Fig. 6; According to harmful aerocolloidal processing method in the relative closure space of present embodiment; It comprises that (a) offers new wind and replenish mouth 10 on a sidewall that constitutes relative closure space 1, and in relative closure space 1, feeds new wind for additional mouthful 10 by this new wind; (b) side with respect to the additional mouth 10 of new wind in relative closure space 1 is provided with air-flow processing unit 2; This air-flow processing unit 2 comprises the seal case 20 on the sidewall that is arranged on relative closure space 1 and is successively set on filtering and sterilizing device 21 and slim blower fan 22 in the seal case 20 by the flow direction of air-flow, on sealing casing 20, is provided with air-out passage 200; (c) the new wind of control replenishes the air intake flow at mouthful 10 places and the ratio of the air-out flow of discharging from air-out passage 200; Make that in relative closure space 1, producing the wind of making a fresh start replenishes the windstream 3 of mouthful 10 place effluents to the air-flow processing unit; This windstream 3 is discharged in the atmosphere through air-out passage 200 after air-flow processing unit 2 is handled.
The filtering and sterilizing device 21 that relates in the present embodiment reaches 99.9995% air cleaner 211 by prefilter 210, uviol lamp 212 and filter efficiency and forms.Wherein, prefilter 210 is used to hold back the dust of larger particles, and air cleaner 211 not only can be held back the particle of particle diameter more than 0.12 μ m, and himself specific coatings also can be killed and holds back down the germ microorganism that has in the dust.Atmosphere plays specific protective effect to external world.Placed the aerosol concentration detection system at prefilter 210 front ends; When indoor aerosol concentration was higher than setting value, assert that filter has little time to filter all aerosols this moment, for reducing indoor aerosol concentration faster; Central processing unit can send instruction and give the control system; Uviol lamp 212 is started, and too high through sound and light alarm prompting indoor occupant aerosol concentration simultaneously, the protection that please take appropriate measure to is own or leave indoor.In addition, the present invention also is provided with the filter pressure differential detection system, because through after the regular hour; Filter is owing to control of dust, and resistance can rise, and its filter effect also can descend; Therefore, system can monitor the pressure reduction at filter two ends in real time, if when filter pressure reduction surpasses setting value; Central processing unit can send instruction and give the control system, and is too high through sound and light alarm prompting indoor occupant filter resistance, please in time changes filter.
In this example, the ratio of turnover wind flow makes it be lower than 0.9 in the control relative closure space 1, can realize that this space has the enough negative pressure that satisfy formation windstream 3 as shown in the figure.Consider that this space is a relative closure; The variation of (when for example door is opened) space internal pressure under some position leak case may appear; Therefore; Be necessary the pressure in the relative closure space 1 is monitored in real time, and carry out accommodation to keep negative pressure and to keep windstream 3 according to the force value that detects.
As shown in Figure 7, utilize differential pressure pickup to gather the pressure in the enclosure space, calculate the pressure reduction inside and outside the enclosure space by central processing unit then; If pressure reduction is lower than the setting value lower limit, then central processing unit sends instruction and gives the control system, and rotation speed of fan is improved; Increase air-out flow with this, pressure to the enclosure space inside and outside differential pressure in the reduction enclosure space is higher than under the setting value prescribes a time limit, and central processing unit provides instruction again and keeps rotation speed of fan constant; Otherwise if pressure reduction is higher than the setting value upper limit, then central processing unit sends instruction and gives the control system; Rotation speed of fan is reduced; Reduce air-out flow with this, pressure to the enclosure space inside and outside differential pressure in the reduction enclosure space is lower than on the setting value prescribes a time limit, and central processing unit provides instruction again and keeps rotation speed of fan constant.
To sum up; The present invention utilizes certain negative pressure to produce way flow, cooperates the air-flow processing unit to come indoor harmful aerosol is removed, and detection system detects aerocolloidal concentration simultaneously; Add that uviol lamp comes assisting sterilisation, thereby guarantee the safety of air in the space more.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. be harmful to aerocolloidal processing method in the relative closure space (1); It is characterized in that: this processing method comprises that (a) offers new wind and replenish mouthful (10) on a sidewall that constitutes said relative closure space (1), and in said relative closure space (1), feeds new wind by this new wind additional mouthful (10); (b) side with respect to said new wind additional mouthful (10) in said relative closure space (1) is provided with air-flow processing unit (2); This air-flow processing unit (2) comprises the seal case (20) on the sidewall that is arranged on relative closure space (1) and is successively set on filtering and sterilizing device (21) and blower fan (22) in the said seal case (20) by the flow direction of air-flow, on sealing casing (20), is provided with air-out passage (200); And the ratio of (c) controlling said new wind additional mouthful (10) air intake flow of locating and the air-out flow of discharging from said air-out passage (200) is smaller or equal to 0.9; Make in said relative closure space (1), to produce and replenish the windstream of mouthful (10) place effluent to said air-flow processing unit (2) from said new wind; This windstream is discharged in the atmosphere through air-out passage (200) after air-flow processing unit (2) is handled.
2. processing method according to claim 1 is characterized in that: said filtering and sterilizing device (21) comprises the prefilter that is used for stopping bulky grain dust (210), the uviol lamp (212) that sets gradually by the air current flow direction and can kill the air cleaner (211) of holding back down the germ microorganism that dust has.
3. processing method according to claim 2; It is characterized in that: the upper reaches that this processing method also is included in said prefilter (210) are provided with the aerosol checkout gear; A detected aerosol concentration and a preset value are compared, when being higher than preset value, sending instruction by central processing unit and give the control system; Start uviol lamp (212) and assist sterilization, send the too high prompting of aerosol concentration through sound and light alarm simultaneously.
4. according to claim 2 or 3 described processing methods, it is characterized in that: this processing method comprises that also the pressure reduction to said filtering and sterilizing device (21) detects and when the value that detects surpasses preset value, send prompting in real time.
5. processing method according to claim 1; It is characterized in that: said processing method also comprises monitors the pressure in the said relative closure space (1) in real time; And a detected pressure and a setting value are compared; When pressure is higher than setting value, strengthen air-out flow to guarantee to form the required enough negative pressure of windstream.
6. processing method according to claim 5 is characterized in that: utilize differential pressure pickup to gather the pressure in the said relative closure space (1), calculate the inside and outside pressure reduction in relative closure space (1) by central processing unit then; If pressure reduction is lower than said setting value lower limit, then central processing unit sends instruction and gives the control system, and blower fan (22) rotating speed is improved; Increase air-out flow with this; Pressure to relative closure space (1) inside and outside differential pressure in the reduction relative closure space (1) is higher than under the setting value prescribes a time limit, and central processing unit provides instruction again and keeps blower fan (22) rotating speed constant, otherwise; If pressure reduction is higher than the setting value upper limit; Then central processing unit sends instruction and gives the control system, and blower fan (22) rotating speed is reduced, and reduces air-out flow with this; Pressure to relative closure space (1) inside and outside differential pressure in the reduction relative closure space (1) is lower than on the setting value prescribes a time limit, and central processing unit provides instruction again and keeps blower fan (22) rotating speed constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010267297XA CN101936589B (en) | 2010-08-31 | 2010-08-31 | Method for treating harmful aerosol in relatively sealed space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010267297XA CN101936589B (en) | 2010-08-31 | 2010-08-31 | Method for treating harmful aerosol in relatively sealed space |
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| Publication Number | Publication Date |
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| CN101936589A CN101936589A (en) | 2011-01-05 |
| CN101936589B true CN101936589B (en) | 2012-08-15 |
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| CN201010267297XA Active CN101936589B (en) | 2010-08-31 | 2010-08-31 | Method for treating harmful aerosol in relatively sealed space |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107013976B (en) * | 2017-03-31 | 2020-12-11 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and method for controlling sliding of first filter screen by air conditioner indoor unit |
| CN109200684A (en) * | 2018-09-05 | 2019-01-15 | 嘉兴美斯克电气科技有限公司 | A kind of high temperature sterilization suction type air purifier |
| CN111237915A (en) * | 2020-03-10 | 2020-06-05 | 重庆陈氏清洁服务有限公司 | Method and device for protecting personnel-dense area from harmful bacteria and viruses |
| CN111365809B (en) * | 2020-03-12 | 2020-10-30 | 中国人民解放军火箭军工程设计研究院 | Underground space harmful gas diffusion control system |
| CN111409419B (en) * | 2020-04-30 | 2021-01-12 | 珠海鹏宇汽车有限公司 | Negative pressure device and ambulance |
| CN111981591A (en) * | 2020-06-23 | 2020-11-24 | 美埃(中国)环境科技股份有限公司 | Negative pressure ward is with purifier that airs exhaust |
| CN111750449A (en) * | 2020-06-30 | 2020-10-09 | 深圳市巨鼎医疗设备有限公司 | Air inlet mechanism and negative pressure system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2740937Y (en) * | 2004-11-05 | 2005-11-16 | 曹国俊 | Fresh air purifier of central air conditioner |
| CN1704691A (en) * | 2004-05-25 | 2005-12-07 | 曹国俊 | Sickroom with negative pressure ventilating and disinfecting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL154597A (en) * | 2003-02-24 | 2007-02-11 | Filt Air Ltd | Airlock system and method for protecting a toxic-free area |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704691A (en) * | 2004-05-25 | 2005-12-07 | 曹国俊 | Sickroom with negative pressure ventilating and disinfecting system |
| CN2740937Y (en) * | 2004-11-05 | 2005-11-16 | 曹国俊 | Fresh air purifier of central air conditioner |
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| CN101936589A (en) | 2011-01-05 |
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